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Message-ID: <69f82ca9-c0b5-0ce6-147f-9a054726da4f@quicinc.com>
Date: Tue, 15 Aug 2023 00:35:12 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Bjorn Andersson <quic_bjorande@...cinc.com>,
Vikash Garodia <quic_vgarodia@...cinc.com>
CC: <stanimir.k.varbanov@...il.com>, <agross@...nel.org>,
<andersson@...nel.org>, <konrad.dybcio@...aro.org>,
<mchehab@...nel.org>, <hans.verkuil@...co.com>,
<linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>,
<linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH 11/33] iris: vidc: add helpers for memory management
On 7/28/2023 9:58 PM, Bjorn Andersson wrote:
> On Fri, Jul 28, 2023 at 06:53:22PM +0530, Vikash Garodia wrote:
>> diff --git a/drivers/media/platform/qcom/iris/vidc/src/msm_vidc_memory.c b/drivers/media/platform/qcom/iris/vidc/src/msm_vidc_memory.c
> [..]
>> +static const struct msm_vidc_memory_ops msm_mem_ops = {
>> + .dma_buf_get = msm_vidc_dma_buf_get,
>> + .dma_buf_put = msm_vidc_dma_buf_put,
>> + .dma_buf_put_completely = msm_vidc_dma_buf_put_completely,
>> + .dma_buf_attach = msm_vidc_dma_buf_attach,
>> + .dma_buf_detach = msm_vidc_dma_buf_detach,
>> + .dma_buf_map_attachment = msm_vidc_dma_buf_map_attachment,
>> + .dma_buf_unmap_attachment = msm_vidc_dma_buf_unmap_attachment,
>> + .memory_alloc_map = msm_vidc_memory_alloc_map,
>> + .memory_unmap_free = msm_vidc_memory_unmap_free,
>> + .buffer_region = msm_vidc_buffer_region,
>
> Will there ever be more than one implementation of the
> msm_vidc_memory_ops?
>
> Unless there's a really strong reason, just call the functions directly
> without the function pointers and call_mem_op(), this will be slightly
> faster, but more importantly it allows for much faster navigation of the
> code base.
>
That's right, implementation of these APIs won't change for different platform.
Will remove the ops and use direct function in next version.
Thanks,
Dikshita
> Regards,
> Bjorn
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